Add draft-only invoicing rules, send reminders, and time clock billing.

Restrict line item edits to draft invoices, auto-create drafts on clock-out,
and add sendReminderAt scheduling with dashboard due reminders.

Co-authored-by: Cursor <cursoragent@cursor.com>

drizzle/0015_invoice_send_reminder_at.sql

@@ -0,0 +1 @@
+ALTER TABLE "beenvoice_invoice" ADD COLUMN "send_reminder_at" timestamp;

src/app/dashboard/invoices/[id]/page.tsx

@@ -52,6 +52,7 @@ import { Separator } from "~/components/ui/separator";
 import { Textarea } from "~/components/ui/textarea";
 import { Input } from "~/components/ui/input";
 import { Label } from "~/components/ui/label";
+import { DatePicker } from "~/components/ui/date-picker";
 import {
   getEffectiveInvoiceStatus,
   isInvoiceOverdue,
@@ -166,6 +167,15 @@ function InvoiceViewContent({ invoiceId }: { invoiceId: string }) {
     onError: (e) => toast.error(e.message ?? "Failed to send reminder"),
   });
 
+  const updateInvoice = api.invoices.update.useMutation({
+    onSuccess: () => {
+      toast.success("Reminder saved");
+      void utils.invoices.getById.invalidate({ id: invoiceId });
+      void utils.dashboard.getStats.invalidate();
+    },
+    onError: (e) => toast.error(e.message ?? "Failed to save reminder"),
+  });
+
   if (isLoading) return <InvoiceDetailsSkeleton />;
   if (!invoice) notFound();
 
@@ -522,7 +532,7 @@ function InvoiceViewContent({ invoiceId }: { invoiceId: string }) {
 
         {/* Right Column - Actions */}
         <div className="space-y-6">
-          {effectiveStatus !== "paid" && (
+          {storedStatus === "draft" && (
             <InvoiceTimerCard invoiceId={invoiceId} clientId={invoice.clientId} />
           )}
 
@@ -553,6 +563,25 @@ function InvoiceViewContent({ invoiceId }: { invoiceId: string }) {
                 />
               )}
 
+              {effectiveStatus === "draft" && (
+                <SendReminderEditor
+                  key={`${invoiceId}-${invoice.sendReminderAt?.toISOString() ?? "none"}`}
+                  invoiceId={invoiceId}
+                  savedReminderAt={invoice.sendReminderAt}
+                  formatDate={formatDate}
+                  isSaving={updateInvoice.isPending}
+                  onSave={(sendReminderAt) =>
+                    updateInvoice.mutate({
+                      id: invoiceId,
+                      sendReminderAt,
+                    })
+                  }
+                  onClear={() =>
+                    updateInvoice.mutate({ id: invoiceId, sendReminderAt: null })
+                  }
+                />
+              )}
+
               {(effectiveStatus === "sent" || effectiveStatus === "overdue") && (
                 <EnhancedSendInvoiceButton
                   invoiceId={invoice.id}
@@ -808,6 +837,67 @@ function InvoiceViewContent({ invoiceId }: { invoiceId: string }) {
   );
 }
 
+function SendReminderEditor({
+  invoiceId,
+  savedReminderAt,
+  formatDate,
+  isSaving,
+  onSave,
+  onClear,
+}: {
+  invoiceId: string;
+  savedReminderAt: Date | null | undefined;
+  formatDate: (date: Date) => string;
+  isSaving: boolean;
+  onSave: (sendReminderAt: Date | null) => void;
+  onClear: () => void;
+}) {
+  const [sendReminderAt, setSendReminderAt] = useState<Date | undefined>(() =>
+    savedReminderAt ? new Date(savedReminderAt) : undefined,
+  );
+
+  return (
+    <div className="space-y-2 rounded-lg border p-3">
+      <Label htmlFor={`send-reminder-at-${invoiceId}`}>Remind me to send</Label>
+      <DatePicker
+        date={sendReminderAt}
+        onDateChange={setSendReminderAt}
+        className="w-full"
+      />
+      <div className="flex gap-2">
+        <Button
+          variant="outline"
+          size="sm"
+          className="flex-1"
+          onClick={() => onSave(sendReminderAt ?? null)}
+          disabled={isSaving}
+        >
+          Save reminder
+        </Button>
+        {sendReminderAt ? (
+          <Button
+            variant="ghost"
+            size="sm"
+            onClick={() => {
+              setSendReminderAt(undefined);
+              onClear();
+            }}
+          >
+            Clear
+          </Button>
+        ) : null}
+      </div>
+      {savedReminderAt ? (
+        <p className="text-muted-foreground text-xs">
+          {new Date(savedReminderAt) <= new Date()
+            ? "Reminder is due — time to send this invoice."
+            : `Scheduled for ${formatDate(savedReminderAt)}`}
+        </p>
+      ) : null}
+    </div>
+  );
+}
+
 export default function InvoiceViewPage() {
   const params = useParams();
   const router = useRouter();

src/components/forms/invoice-calendar-view.tsx

@@ -54,6 +54,7 @@ interface InvoiceCalendarViewProps {
   onRemoveItem: (index: number) => void;
   className?: string;
   defaultHourlyRate: number | null;
+  readOnly?: boolean;
 }
 
 export function InvoiceCalendarView({
@@ -63,6 +64,7 @@ export function InvoiceCalendarView({
   onRemoveItem,
   className,
   defaultHourlyRate: _defaultHourlyRate,
+  readOnly = false,
 }: InvoiceCalendarViewProps) {
   const [date, setDate] = React.useState<Date | undefined>(undefined); // Start unselected
   const [viewDate, setViewDate] = React.useState<Date>(new Date()); // Controls the view (month/week)
@@ -403,10 +405,12 @@ export function InvoiceCalendarView({
                       There are no time entries recorded for this day yet.
                     </p>
                   </div>
+                  {!readOnly ? (
                     <Button onClick={handleAddNewItem} className="mt-2" size="lg">
                       <Plus className="mr-2 h-4 w-4" />
                       Log Time
                     </Button>
+                  ) : null}
                 </div>
               ) : (
                 <div className="space-y-4">
@@ -428,6 +432,7 @@ export function InvoiceCalendarView({
                             }
                             placeholder="Describe the work performed..."
                             className="pl-3 text-sm"
+                            disabled={readOnly}
                           />
                         </div>
 
@@ -443,6 +448,7 @@ export function InvoiceCalendarView({
                               step={0.25}
                               min={0}
                               width="full"
+                              disabled={readOnly}
                             />
                           </div>
                           <div className="space-y-1">
@@ -456,6 +462,7 @@ export function InvoiceCalendarView({
                               min={0}
                               step={1}
                               width="full"
+                              disabled={readOnly}
                             />
                           </div>
                         </div>
@@ -464,6 +471,7 @@ export function InvoiceCalendarView({
                       {/* Bottom section with controls, item name, and total */}
                       <div className="border-border bg-muted/50 flex items-center justify-between border-t px-4 py-2">
                         <div className="flex items-center gap-2">
+                          {!readOnly ? (
                             <Button
                               type="button"
                               variant="ghost"
@@ -473,6 +481,7 @@ export function InvoiceCalendarView({
                             >
                               <Trash2 className="h-4 w-4" />
                             </Button>
+                          ) : null}
                         </div>
                         <div className="flex-1 px-3 text-center">
                           <span className="text-muted-foreground block text-sm font-medium">
@@ -490,6 +499,7 @@ export function InvoiceCalendarView({
                       </div>
                     </div>
                   ))}
+                  {!readOnly ? (
                     <Button
                       variant="outline"
                       onClick={handleAddNewItem}
@@ -500,6 +510,7 @@ export function InvoiceCalendarView({
                       </div>
                       <span>Add Another Entry</span>
                     </Button>
+                  ) : null}
                 </div>
               )}
             </div>

src/components/forms/invoice-form.tsx

@@ -808,6 +808,7 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
                   invoiceId={invoiceId && invoiceId !== "new" ? invoiceId : undefined}
                   clientId={formData.clientId || undefined}
                   defaultRate={formData.items[0]?.rate}
+                  readOnly={formData.status !== "draft"}
                 />
               </CardContent>
             </Card>
@@ -831,6 +832,7 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
                   onRemoveItem={removeItem}
                   onUpdateItem={updateItem}
                   defaultHourlyRate={formData.defaultHourlyRate}
+                  readOnly={formData.status !== "draft"}
                 />
               </CardContent>
             </Card>

src/components/forms/invoice-line-items.tsx

@@ -40,6 +40,7 @@ interface InvoiceLineItemsProps {
   clientId?: string;
   defaultRate?: number;
   className?: string;
+  readOnly?: boolean;
 }
 
 interface LineItemRowProps {
@@ -55,6 +56,7 @@ interface LineItemRowProps {
   suggestions: LineItemSuggestion[];
   onSelectSuggestion: (index: number, suggestion: LineItemSuggestion) => void;
   onDescriptionChange: (index: number, value: string) => void;
+  readOnly?: boolean;
 }
 
 interface DescriptionAutocompleteProps {
@@ -64,6 +66,7 @@ interface DescriptionAutocompleteProps {
   suggestions: LineItemSuggestion[];
   placeholder?: string;
   className?: string;
+  disabled?: boolean;
 }
 
 function DescriptionAutocomplete({
@@ -73,6 +76,7 @@ function DescriptionAutocomplete({
   suggestions,
   placeholder,
   className,
+  disabled,
 }: DescriptionAutocompleteProps) {
   const [open, setOpen] = useState(false);
   const [activeIndex, setActiveIndex] = useState(-1);
@@ -116,6 +120,7 @@ function DescriptionAutocomplete({
         onKeyDown={handleKeyDown}
         placeholder={placeholder}
         className={className}
+        disabled={disabled}
       />
       {showDropdown && (
         <div className="bg-popover text-popover-foreground border-border absolute top-full left-0 z-50 mt-1 w-full overflow-hidden rounded-md border shadow-md">
@@ -146,7 +151,7 @@ function DescriptionAutocomplete({
 }
 
 const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
-  ({ item, index, canRemove, onRemove, onUpdate, suggestions, onSelectSuggestion, onDescriptionChange }, ref) => {
+  ({ item, index, canRemove, onRemove, onUpdate, suggestions, onSelectSuggestion, onDescriptionChange, readOnly }, ref) => {
     return (
       <div
         ref={ref}
@@ -160,6 +165,7 @@ const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
           size="sm"
           className="w-full"
           inputClassName="h-9"
+          disabled={readOnly}
         />
 
         <DescriptionAutocomplete
@@ -169,6 +175,7 @@ const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
           suggestions={suggestions}
           placeholder="Describe the work performed..."
           className="h-9 w-full text-sm font-medium"
+          disabled={readOnly}
         />
 
         <NumberInput
@@ -179,6 +186,7 @@ const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
           width="full"
           className="h-9 font-mono [&_button]:w-6 [&_input]:min-w-12"
           suffix="h"
+          disabled={readOnly}
         />
 
         <NumberInput
@@ -189,12 +197,14 @@ const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
           prefix="$"
           width="full"
           className="h-9 font-mono [&_button]:w-6 [&_input]:min-w-14"
+          disabled={readOnly}
         />
 
         <div className="text-primary text-right font-mono font-semibold">
           ${(item.hours * item.rate).toFixed(2)}
         </div>
 
+        {!readOnly ? (
           <Button
             type="button"
             variant="ghost"
@@ -206,6 +216,9 @@ const LineItemCard = React.forwardRef<HTMLDivElement, LineItemRowProps>(
           >
             <Trash2 className="h-4 w-4" />
           </Button>
+        ) : (
+          <span />
+        )}
       </div>
     );
   },
@@ -221,6 +234,7 @@ function MobileLineItem({
   suggestions,
   onSelectSuggestion,
   onDescriptionChange,
+  readOnly,
 }: LineItemRowProps) {
   return (
     <motion.div
@@ -243,6 +257,7 @@ function MobileLineItem({
             suggestions={suggestions}
             placeholder="Describe the work performed..."
             className="pl-3 text-sm"
+            disabled={readOnly}
           />
         </div>
 
@@ -254,6 +269,7 @@ function MobileLineItem({
             onDateChange={(date) => onUpdate(index, "date", date ?? new Date())}
             size="sm"
             inputClassName="h-9"
+            disabled={readOnly}
           />
         </div>
 
@@ -267,6 +283,7 @@ function MobileLineItem({
               min={0}
               step={0.25}
               width="full"
+              disabled={readOnly}
             />
           </div>
           <div className="space-y-1">
@@ -279,6 +296,7 @@ function MobileLineItem({
               prefix="$"
               width="full"
               className="font-mono"
+              disabled={readOnly}
             />
           </div>
         </div>
@@ -287,6 +305,7 @@ function MobileLineItem({
       {/* Bottom section with controls, item name, and total */}
       <div className="border-border bg-muted/50 flex items-center justify-between border-t px-4 py-2">
         <div className="flex items-center gap-2">
+          {!readOnly ? (
             <Button
               type="button"
               variant="ghost"
@@ -298,6 +317,7 @@ function MobileLineItem({
             >
               <Trash2 className="h-4 w-4" />
             </Button>
+          ) : null}
         </div>
         <div className="flex-1 px-3 text-center">
           <span className="text-muted-foreground block text-sm font-medium">
@@ -352,6 +372,7 @@ export function InvoiceLineItems({
   clientId,
   defaultRate: _defaultRate,
   className,
+  readOnly = false,
 }: InvoiceLineItemsProps) {
   const canRemoveItems = items.length > 1;
   const { search } = useLineItemSuggestions();
@@ -378,6 +399,11 @@ export function InvoiceLineItems({
 
   return (
     <div className={cn("space-y-2", className)}>
+      {readOnly ? (
+        <p className="text-muted-foreground text-sm">
+          Line items are locked after an invoice is sent. Revert to draft to edit entries.
+        </p>
+      ) : null}
       <AnimatePresence>
         <div className="space-y-2 md:space-y-0 md:overflow-hidden md:rounded-lg md:border">
           <div className="bg-muted/60 text-muted-foreground hidden grid-cols-[140px_minmax(200px,1fr)_124px_136px_104px_32px] gap-2 border-b px-3 py-2 text-xs font-medium md:grid">
@@ -408,6 +434,7 @@ export function InvoiceLineItems({
                   suggestions={getSuggestionsForIndex(index)}
                   onSelectSuggestion={handleSelectSuggestion}
                   onDescriptionChange={handleDescriptionChange}
+                  readOnly={readOnly}
                 />
               </motion.div>
 
@@ -421,6 +448,7 @@ export function InvoiceLineItems({
                 suggestions={getSuggestionsForIndex(index)}
                 onSelectSuggestion={handleSelectSuggestion}
                 onDescriptionChange={handleDescriptionChange}
+                readOnly={readOnly}
               />
             </React.Fragment>
           ))}
@@ -444,13 +472,13 @@ export function InvoiceLineItems({
               </Button>
             </div>
           )}
-          {onAddItemWithValues && (
+          {onAddItemWithValues && !readOnly ? (
             <NLQuickAdd onAdd={onAddItemWithValues} />
-          )}
+          ) : null}
         </div>
       </AnimatePresence>
 
-      {/* Add Item Button */}
+      {!readOnly ? (
         <Button
           type="button"
           variant="outline"
@@ -460,6 +488,7 @@ export function InvoiceLineItems({
           <Plus className="mr-2 h-4 w-4" />
           Add Line Item
         </Button>
+      ) : null}
     </div>
   );
 }

src/components/time-clock/time-clock-panel.tsx

@@ -134,7 +134,7 @@ export function TimeClockPanel({
     invoicePrefix: string | null;
     invoiceNumber: string;
     status: string;
-  }) => `${inv.invoicePrefix ?? "#"}${inv.invoiceNumber} (${inv.status})`;
+  }) => `${inv.invoicePrefix ?? "#"}${inv.invoiceNumber}`;
 
   const displayDescription = running ? running.description : description;
   const displayRate = running ? (running.rate ?? 0) : rate;

src/lib/draft-invoice.ts

@@ -0,0 +1,11 @@
+/** Default invoice number format (matches web/mobile create forms). */
+export function generateInvoiceNumber(now = new Date()): string {
+  const date = now.toISOString().slice(0, 10).replace(/-/g, "");
+  return `INV-${date}-${String(now.getTime()).slice(-6)}`;
+}
+
+export function defaultDueDate(issueDate: Date): Date {
+  const due = new Date(issueDate);
+  due.setDate(due.getDate() + 30);
+  return due;
+}

src/lib/time-clock.ts

@@ -32,7 +32,7 @@ export function describeClockOutOutcome(input: {
       }
       return `Added ${input.hours}h to invoice`;
     case "saved_no_invoice":
-      return `Saved ${input.hours}h — no open invoice found for this client. Pick an invoice on the time clock or create one.`;
+      return `Saved ${input.hours}h — could not create or find a draft invoice for this client.`;
     case "saved_no_client":
       return `Saved ${input.hours}h — assign a client and invoice to bill this time.`;
     case "zero_hours":

src/server/api/routers/dashboard.ts

@@ -1,6 +1,6 @@
 import { createTRPCRouter, protectedProcedure } from "~/server/api/trpc";
 import { invoices, clients } from "~/server/db/schema";
-import { eq, desc } from "drizzle-orm";
+import { and, desc, eq, isNotNull, lte } from "drizzle-orm";
 
 export const dashboardRouter = createTRPCRouter({
   getStats: protectedProcedure.query(async ({ ctx }) => {
@@ -118,6 +118,26 @@ export const dashboardRouter = createTRPCRouter({
       },
     });
 
+    const sendReminderDue = await ctx.db.query.invoices.findMany({
+      where: and(
+        eq(invoices.createdById, userId),
+        eq(invoices.status, "draft"),
+        isNotNull(invoices.sendReminderAt),
+        lte(invoices.sendReminderAt, now),
+      ),
+      columns: {
+        id: true,
+        invoiceNumber: true,
+        invoicePrefix: true,
+        sendReminderAt: true,
+      },
+      with: {
+        client: { columns: { name: true } },
+      },
+      orderBy: [desc(invoices.sendReminderAt)],
+      limit: 10,
+    });
+
     return {
       totalRevenue,
       pendingAmount,
@@ -129,6 +149,7 @@ export const dashboardRouter = createTRPCRouter({
           : 0,
       revenueChartData,
       recentInvoices,
+      sendReminderDue,
     };
   }),
 });

src/server/api/routers/invoices.ts

@@ -43,6 +43,7 @@ const createInvoiceSchema = z.object({
   emailMessage: z.string().optional().or(z.literal("")),
   taxRate: z.number().min(0).max(100).default(0),
   currency: z.string().length(3).default("USD"),
+  sendReminderAt: z.date().nullable().optional(),
   items: z.array(invoiceItemSchema).min(1, "At least one item is required"),
 });
 
@@ -155,13 +156,13 @@ export const invoicesRouter = createTRPCRouter({
       }
     }),
 
-  /** Draft and sent invoices available for time-clock billing. */
+  /** Draft invoices available for time-clock billing. */
   getBillable: protectedProcedure
     .input(z.object({ clientId: z.string().optional() }).optional())
     .query(async ({ ctx, input }) => {
       const conditions = [
         eq(invoices.createdById, ctx.session.user.id),
-        inArray(invoices.status, ["draft", "sent"]),
+        eq(invoices.status, "draft"),
       ];
       if (input?.clientId) conditions.push(eq(invoices.clientId, input.clientId));
 
@@ -418,6 +419,23 @@ export const invoicesRouter = createTRPCRouter({
           });
         }
 
+        if (items && existingInvoice.status !== "draft") {
+          throw new TRPCError({
+            code: "FORBIDDEN",
+            message: "Line items can only be edited on draft invoices",
+          });
+        }
+
+        if (
+          cleanInvoiceData.sendReminderAt !== undefined &&
+          existingInvoice.status !== "draft"
+        ) {
+          throw new TRPCError({
+            code: "FORBIDDEN",
+            message: "Send reminders can only be set on draft invoices",
+          });
+        }
+
         // If business is being updated, verify it belongs to user
         if (
           cleanInvoiceData.businessId &&

src/server/api/routers/time-entries.ts

@@ -1,13 +1,14 @@
 import { z } from "zod";
-import { eq, and, desc, isNull, isNotNull, gte, lte, or } from "drizzle-orm";
+import { eq, and, desc, isNull, isNotNull, gte, lte } from "drizzle-orm";
 import { createTRPCRouter, protectedProcedure } from "../trpc";
-import { timeEntries, clients, invoices, invoiceItems } from "~/server/db/schema";
+import { timeEntries, clients, invoices, invoiceItems, businesses } from "~/server/db/schema";
 import { TRPCError } from "@trpc/server";
 import type { db } from "~/server/db";
 import {
   computeTrackedHours,
   type ClockOutOutcome,
 } from "~/lib/time-clock";
+import { defaultDueDate, generateInvoiceNumber } from "~/lib/draft-invoice";
 
 type Db = typeof db;
 
@@ -86,6 +87,60 @@ async function addEntryToInvoice(
   };
 }
 
+async function findOrCreateDraftInvoice(
+  database: Db,
+  userId: string,
+  clientId: string,
+) {
+  const existing = await database.query.invoices.findFirst({
+    where: and(
+      eq(invoices.clientId, clientId),
+      eq(invoices.createdById, userId),
+      eq(invoices.status, "draft"),
+    ),
+    with: { items: true },
+    orderBy: [
+      desc(invoices.updatedAt),
+      desc(invoices.issueDate),
+      desc(invoices.invoiceNumber),
+    ],
+  });
+
+  if (existing) return existing;
+
+  const client = await database.query.clients.findFirst({
+    where: and(eq(clients.id, clientId), eq(clients.createdById, userId)),
+    columns: { currency: true },
+  });
+  if (!client) return null;
+
+  const defaultBusiness = await database.query.businesses.findFirst({
+    where: and(eq(businesses.createdById, userId), eq(businesses.isDefault, true)),
+    columns: { id: true },
+  });
+
+  const issueDate = new Date();
+  const [created] = await database
+    .insert(invoices)
+    .values({
+      invoiceNumber: generateInvoiceNumber(issueDate),
+      clientId,
+      businessId: defaultBusiness?.id ?? null,
+      issueDate,
+      dueDate: defaultDueDate(issueDate),
+      status: "draft",
+      totalAmount: 0,
+      taxRate: 0,
+      currency: client.currency,
+      createdById: userId,
+    })
+    .returning();
+
+  if (!created) return null;
+
+  return { ...created, items: [] as { amount: number; position: number }[] };
+}
+
 async function addEntryToLatestInvoice(
   database: Db,
   userId: string,
@@ -96,20 +151,7 @@ async function addEntryToLatestInvoice(
   rate: number,
   date: Date,
 ): Promise<{ id: string; invoiceNumber: string; invoicePrefix: string } | null> {
-  const invoice = await database.query.invoices.findFirst({
+  const invoice = await findOrCreateDraftInvoice(database, userId, clientId);
-    where: and(
-      eq(invoices.clientId, clientId),
-      eq(invoices.createdById, userId),
-      or(eq(invoices.status, "draft"), eq(invoices.status, "sent")),
-    ),
-    with: { items: true },
-    orderBy: [
-      desc(invoices.issueDate),
-      desc(invoices.dueDate),
-      desc(invoices.invoiceNumber),
-    ],
-  });
-
   if (!invoice) return null;
   return addEntryToInvoice(database, invoice, entryId, description, hours, rate, date);
 }
@@ -128,7 +170,7 @@ async function addEntryToSpecificInvoice(
     where: and(
       eq(invoices.id, invoiceId),
       eq(invoices.createdById, userId),
-      or(eq(invoices.status, "draft"), eq(invoices.status, "sent")),
+      eq(invoices.status, "draft"),
     ),
     with: { items: true },
   });
@@ -231,14 +273,14 @@ export const timeEntriesRouter = createTRPCRouter({
           where: and(
             eq(invoices.id, invoiceId),
             eq(invoices.createdById, ctx.session.user.id),
-            or(eq(invoices.status, "draft"), eq(invoices.status, "sent")),
+            eq(invoices.status, "draft"),
           ),
           columns: { id: true, clientId: true },
         });
         if (!invoice) {
           throw new TRPCError({
             code: "FORBIDDEN",
-            message: "Invoice not found or not open for time tracking",
+            message: "Only draft invoices accept new time entries",
           });
         }
         if (resolvedClientId && invoice.clientId !== resolvedClientId) {
@@ -345,14 +387,14 @@ export const timeEntriesRouter = createTRPCRouter({
             where: and(
               eq(invoices.id, invoiceId),
               eq(invoices.createdById, ctx.session.user.id),
-              or(eq(invoices.status, "draft"), eq(invoices.status, "sent")),
+              eq(invoices.status, "draft"),
             ),
             columns: { id: true, clientId: true },
           });
           if (!invoice) {
             throw new TRPCError({
               code: "FORBIDDEN",
-              message: "Invoice not found or not open for time tracking",
+              message: "Only draft invoices accept new time entries",
             });
           }
           if (resolvedClientId && invoice.clientId !== resolvedClientId) {

src/server/db/schema.ts

@@ -369,6 +369,7 @@ export const invoices = createTable(
     publicToken: d.varchar({ length: 255 }).unique(),
     publicTokenExpiresAt: d.timestamp(),
     lastReminderSentAt: d.timestamp(),
+    sendReminderAt: d.timestamp(),
     createdAt: d
       .timestamp()
       .default(sql`CURRENT_TIMESTAMP`)